Video of flash flood in San Bernardino County

Forest Falls flash flooding

Heavy thunderstorms caused flash flooding Friday at Forest Falls, an unincorporated community in San Bernardino County, off Highway 38. A person identifying himself only as George6900 posted video on YouTube that shows a debris flow in the Mill Valley section of the community that was caused by the storms, which dumped 2'' to 4'' of rain in various places between roughly 1 p.m. to 2:30 p.m. The footage was reviewed and authenticated by Alexander Tardy, a forecaster at the National Weather Service in Rancho Bernardo. San Diego County also received rain Friday, but it was extremely light and largely confined to northeastern areas of the county.